Alexandee d



(No Model.)

A. D. CLARKE.

APPARATUS FOR CLEANING FILTERS OF ORB GONGENTRATORS. No. 323,790. Patented Aug. 4, 1885.

llNiTEn STATES PATENT OFFICE.

ALEXANDER D. CLARKE, OE NEW YORK, N. Y.

APPARATUS FOR CLEANING FILTERS OF ORECONCENTRATORS SPECIFICATION forming part of Letters Patent N o. 323,790, dated August 4, 1885,

Application mea November 1o, 1884. (No mdel.)

To all whom t may concern:

Be it known that I, ALEXANDER D. CLARKE, a citizen of the United States, residing in New York, in the county of New York and State of New York, have invented a new and useful Improvement in Apparatus for Cleaning Filters of Ore-Concentrators, of which the following is a specification.

This invention is designed to afford facilities for Washing the filtering-blankets in oreconcentrators used in placer mines containing float-gold. Its nature is fully set forth in the subjoined description and accompanying drawings, wherein- Figure 1 is a plan view of a portion of an ore-concentrator embodying my invention.

Fig. 2 is a transverse vertical section of the same on line 2 2 of Fig. l.

In said drawings,Lrepresents longitudinallyinclined tables or chutes, upon which filterframes WV, covered by wire-cloth V, are laid. The filtering-blankets, w, or other permeable material used as filters, are spread upon the wire-cloth, and the water containing the floating gold is caused to flow over the same from the upper end, a, the gold being taken out as the water percolates through the filter into the channel Wformed beneath the lilter upon the table L. The water thus entering the channel IN2 falls therefrom into a tank, D, or some suitable sluiceway or reservoir. These parts are more fully explained and shown in a companion application (Serial No. 147,558) to be iled herewith, and are not claimed herein.

To remove the filters from the filter-frames W and carry them away from off the machine for the purpose of washing them oft' in tubs or other vessels would be a work of very considerable labor. To obviate this the space X is left between the blanket-tables L. In the are securely fastened to the bottom of the space or chute X, an inch or two distant from the sides of the chute X. The chuteX has a fall or incline, as do the tables L. Then it is necessary to wash the lters or filter-frames W, they are taken up and hung with the sides which were uppermost as they lay on the lter-frames W next to the screens x. Water is then sprayed on the filters as they hang on the screens x. which the line particles of gold, Sto., are lodged being next the partition X4, the sprayed water washes these line particles out of the filter, and, with the water pouring through the filter, they fall into the space, chute, or sluice X, and iiow through it to the chute X2, and thence into sluice or chute X3, by which they are conveyed to some suitable storage tank or reservoir placed in some convenient position. Suit-able pins in the top of partition X4 and corresponding tags with holes in them on the sides of the filters may be provided for convenience in hanging up.

I claim- The sides of the filters 011V The combination, with the tables L and the filters thereon, of the space or sluice X and the supports in said sluice or space for the filters, substantially as specied.

ALEXANDER D. CLARKE.

Witnesses:

CHARLES E. TEETs, N. S. RAUS. 

